27
Hydraulic connection, cylinder loading system
M
P
M
HW
CW
MASTER
S
Fig. 20
Required components
Pos. Designation
O
Extension for DHW heating, DHW cylinder,
ZK03856
1
Heat pump
2
Heat pump control unit
5
Secondary pump (on-site sizing)
6
Outside temperature sensor (on-site sizing)
7
Safety assembly, secondary circuit
8
Expansion vessel (on-site sizing)
qI
Refrigerant sensor
eP
DHW cylinder (on-site sizing)
eQ
DHW cylinder temperature sensor, bottom
eW
Immersion heater, DHW cylinder (on-site sizing)
eE
Cylinder loading pump, high temperature main-
tenance, DHW heating (on-site sizing)
eT
DHW cylinder temperature sensor, top
eU
DHW circulation pump (on-site sizing)
eI
Temperature sensor, high temperature mainte-
nance, DHW heating (component selection ac-
cording to on-site conditions)
eO
Heat exchanger, loading, DHW heating
rP
Flow limiter, DHW heating (on-site sizing)
rYZ
2-way motorised damper, DHW heating inlet,
heat pump (on-site sizing for type BW
352.B027, 034 and 056)
z-P
3-way mixer, secondary high temperature main-
tenance (on-site sizing)
Hydraulic connection, external heat generator
MASTER
S
P
M
M
M
P
Fig. 21
External heat generator and heating water
buffer cylinder
Preparing for installation
Hydraulic connection requirements
(cont.)
5855865
Installation
Summary of Contents for BW 352.B027
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